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United States Patent | 5,116,101 |
Sekido | May 26, 1992 |
A seat discomfort preventive device includes: a seat back capable of inclining in the fore-and-aft direction; a seat cushion capable of inclining in the fore-and-aft direction; a rocking control unit; and a drive mechanism for rocking at least one of the seat back and the seat cushion. The rocking control unit delivers a control signal in response to a start signal. In accordance with this control signal, the drive mechanism repeatedly rocks at least one of the seat back and the seat cushion with respect to a standard position depending on a sense of discomfort. The rocking control unit may include an inclining control unit. Additionally, a foot plate on which the feet of a passenger are rested is attached to the seat cushion.
Inventors: | Sekido; Tatsuya (Gifu, JP) |
Assignee: | Kabushiki Kaisha Toyota Chuo Kenkyusho (Aichi, JP) |
Appl. No.: | 587794 |
Filed: | September 25, 1990 |
Sep 27, 1989[JP] | 1-251591 |
Current U.S. Class: | 297/330; 297/69; 297/337 |
Intern'l Class: | B60N 002/00 |
Field of Search: | 297/330,69,83,88,316,325,337,340,342,DIG. 7,361 |
2770233 | Nov., 1956 | Thomas | 297/330. |
3934927 | Jan., 1976 | Zur | 297/69. |
4574901 | Mar., 1986 | Joyner | 297/337. |
4832403 | May., 1989 | Tomita | 297/330. |
4860733 | Aug., 1989 | Parker, Jr. | 297/330. |
Foreign Patent Documents | |||
3419008 | Dec., 1985 | DE | 297/330. |